Polish protesters have once again blocked truck traffic at the Rava-Ruska – Hrebenne checkpoint on the border with Ukraine, according to the State Border Guard Service. According to border guards, Polish protesters are not allowing trucks to leave Ukraine. Trucks are allowed to enter Ukraine according to the previously announced schedule: 12 vehicles within 12 hours, and 4 trucks carrying humanitarian aid per hour. Other categories of vehicles in both directions are being allowed to cross as usual. Border guards say that representatives of Polish farmers are demanding a reduction in the import…